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Home Three-dimensional evaluation of rapid maxillary expansion anchored to primary molars: direct effects...

Three-dimensional evaluation of rapid maxillary expansion anchored to primary molars: direct effects on maxillary arch and spontaneous mandibular response

Authors:

  • A. Di Ventura
    Private practice, Teramo, Italy
  • V. Lanteri
    Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
  • G. Farronato
    Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
  • F. Gaffuri
    Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
  • M. Beretta
    Private practice, Alessandria, Italy
  • C. Lanteri
    Private practice, Alessandria, Italy
  • G. Cossellu
    Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy

DOI:

https://doi.org/10.23804/ejpd.2019.20.01.08

ABSTRACT


Aim

The purpose of this study was to evaluate the effects of rapid maxillary expansion (RME) on maxillary and mandibular arch in the mixed dentition.

Material and methods

Forty-four consecutive patients with transverse maxillary deficiency were recruited. Test group: 21 patients (10 male, 11 female; 7.4 ± 1.2 years) who underwent RME (Haas type) therapy banded on the primary second molars. Control group: 17 patients (10 male, 7 female; 7.3 ± 1.1 years old) who did not receive any orthodontic treatment. Dental casts obtained pre-treatment and after appliance removal (11 months) were processed by means of a three-dimensional scanner (3Shape D250 laser, DK). Digital landmarks were traced using the VAM software (Canfield Scientific Inc., Fairfield-NJ, USA). Arch Length, interdental width and torque differences were measured before and after the removal of the appliance. The t-test (P<0.05) for paired data was applied to evaluate the measurements values before and after treatment. The linear regression model was employed to assess the correlations between treatment effects.

Results

The efficacy of the RME was confirmed both on maxillary and mandibular arch. Mandibular intermolar width (+2.02 mm) together with primary intermolar (+1.39 mm), intercanine width (+0.95mm) and torque variations significantly increased. The untreated control group showed no significant statistical differences between T0 and T1. The linear regression between maxillary and mandibular data showed correlations between the torque of the teeth 16/46 and 65/85 (P<0.05).

Conclusion

RME anchored on primary molars is an effective treatment option to correct tranverse maxillary deficiencies. All the measurements increased significantly confirming the indirect effect of RME on the mandibular arch.

PLUMX METRICS

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Publication date:

March /2019

Issue:

Vol.20 – n.1/2019

Page:

38 – 42

Publisher:

Ariesdue

Cite:


Harvard: A. Di Ventura, V. Lanteri, G. Farronato, F. Gaffuri, M. Beretta, C. Lanteri, G. Cossellu (2019) "Three-dimensional evaluation of rapid maxillary expansion anchored to primary molars: direct effects on maxillary arch and spontaneous mandibular response", European Journal of Paediatric Dentistry, 20(1), pp38-42. doi: 10.23804/ejpd.2019.20.01.08
Vancouver: A. Di Ventura, V. Lanteri, G. Farronato, F. Gaffuri, M. Beretta, C. Lanteri, G. Cossellu. Three-dimensional evaluation of rapid maxillary expansion anchored to primary molars: direct effects on maxillary arch and spontaneous mandibular response. European Journal of Paediatric Dentistry [Internet]. 2019Mar.1 [cited 2023Mar.23];20(1):38-42. Available from: https://www.ejpd.eu/abstract-pubmed/three-dimensional-evaluation-of-rapid-maxillary-expansion-anchored-to-primary-molars-direct-effects-on-maxillary-arch-and-spontaneous-mandibular-response/
MLA: A. Di Ventura, V. Lanteri, G. Farronato, F. Gaffuri, M. Beretta, C. Lanteri, G. Cossellu Three-dimensional evaluation of rapid maxillary expansion anchored to primary molars: direct effects on maxillary arch and spontaneous mandibular response. European Journal of Paediatric Dentistry. 2019;20(1):38-42

Copyright (c) 2021 Ariesdue

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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